Troubleshooting: Detailed
Use the block diagram as a guide
Also refer to the
beep diagnostic code chart
1. Verify the battery charger is functional by plugging it into the charge port on the back of the mower and let the mower fully charge.
2. If necessary, further test the charger and charge port. Replace as needed. Charge port, Interlock, and temperature sensor should be
replaced together
.
3. Test the key switch by operating it, making sure it has a tactile “click” when turned on or off. Replace if necessary
4. Test and replace main relay and diode as necessary. (Note: when you turn the mower on, you should hear the relay click)
5. Check the
main fuse. If it is blown, check the system for signs of a short circuit before replacing the main fuse
6. If the fuel gauge has power, but no display or malfunctions,
replace the fuel gauge
7. If ONLY the fuel gage works when the key is turned on, test/replace the 48-to-12V DC converter and 5A fuse as necessary
Note: this fuse is a common part available at any automotive store
8. If the mower will not drive
a. Make sure the seat switch is functional and activated.
b. Test the angular transducers. Replace if necessary.
c. Test the neutral switches. Replace if necessary.
d. Test the
brake switch. Replace if necessary.
e. If the mower still will not drive, test the Drive Motor controllers. Replace if necessary.
f. Test the drive motors and Hall sensors, replace as necessary
9. Test the blade operation by pulling up on the PTO switch
a. Make sure the seat switch is functional and activated.
b. Test the master and slave motors. Replace as a pair if found bad
c. Test the master blade and slave blade controllers. Replace as a pair if found bad.
d. If the mower blades still will not operate, replace the Drive motor controllers (same as step 8e above)
10. If the mower works except for the headlights, test the headlight switch and headlights. Replace as necessary
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